Cell Membrane

Question 1

What are the functions of the cell membrane?

Answer 1

maintain homeostasis by regulating the movement of molecules going in and out of the cell

Question 2

What components are in the cell membrane?

Answer 2

phospholipid bilayer, transport proteins/channel proteins, carbohydrate chains, cholesterol

Question 3

The phospholipid bilayer is made up of?

Answer 3

fatty acid tails and phosphate heads

Question 4

Fatty acid tails are

Answer 4

hydrophobic (water-fearing)

Question 5

Phosphate heads are

Answer 5

hydrophilic (water-loving)

Question 6

Homeostasis

Answer 6

process of keeping the internal conditions stable

Question 7

What does the phospholipid bilayer do?

Answer 7

act as a separation and allows for things such as oxygen and carbon dioxide to go through

Question 8

What do the transport proteins/protein channels do?

Answer 8

helps facilitated diffusion for molecules that can’t go through the cell membrane and are large and polar

and active transport

ex) glucose

Question 9

What does the carbohydrate chains (glycoprotein) do in respect to the cell membrane?

Answer 9

works as an identification badge for the cell, differentiates the cell from viruses and diseases, and helps identify what type of cell it is(organization)

Question 10

What does cholesterol do in respect to the cell membrane?

Answer 10

provides the cell membrane support and structure (ensures that the cell membrane isn’t too fluid or too solid)

Question 11

Purpose of fatty acid tails?

Answer 11

separate the cell from the solution it is in; makes up part of the phospholipid bilayer

Question 12

Purpose of phosphate heads?

Answer 12

for the cell to be able to exist in the solution; makes up part of the phospholipid bilayer